Improvement in air-heating furnaces



. 2Sheets-1Sheetl. JOHN S;SUNINER.

Y Air AHeating Furnace. No,124,229. V YPatentedMarcha,1872.

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ZSheetS--Sheet 2.

JOHN S.SUMNER.

Air Heating Furnace.l No. 124,229. Patentedlvxarch,1s72.

JOHN S. SUMNER, `OF NEVTON, MASSACHUSETTS.

IMPROVEMENT IN AIR-HEATING FURNACES.

Specification forming part of Letters Patent No. 124,229, dated March 5,187 2.

To allpersoas to whom these presents may come:

Be it known that I, JOHN S. SUMNER, of Newton, ot' the county ofMiddlesex and State of Massachusetts, have invented a new and uset'ul orImproved Air-Heating Furnace for lVarmin g a Building; and do herebydeclare the saine to be fully described in the tbllowing specitieationand represented in the accompanying drawing' making part thereof.

0f such drawing, Figure l denotes a iront elevation, Fig. 2 a verticalsection, and Fig. 3 a horizontal section ot it. Fig. et is a sectiontaken longitudinally and vertically through the middle ot the radiator,and going in a curve from one to the other end of it.

My invention or improvement has reference to the radiator of thefurnace, and the arrangement and connection of such radiator with thestove and its exit-pipe.

In such drawing, A denotes astove, arranged within a cylindrical case,B, and having' its ash-chamber and fire-place throats a b openin gthrough the said case, as shown. Theire-place or chamber of combustionof the stove is represented at c, the grate at d, the ash pit or chamberat e. There are two educts or smokepipesf g leading out ot the stove inopposite directions. One ot' them, viz., that marked g, opens directlyinto the upper part of the radiator C at one end thereof. The other, f,extends to and through the case B, and is intended to lead to a chimney.An eduetionpipe, l1, opens out oi the other end of the radiator into thedischarge-pipef, there being' in the pipe j' a damper, z', arrangedbetween the stove and the exit-pipe h. 0n opening this damper, thesmoke, gases, and volatile products of combustion frointhe lire-placewill pass oft' without going through the radiator; but, on closing thedamper, the smoke and gases will be caused to enter the radiator andpass through it before escaping into the discharge-pipef. The radiatorextends partially or half Way around the stove concentrically, therebeing between the two an air-space, k. There is, also, such anotherAspace, Z, around the radiator, or between it and the inner periphery ofthe case B. There is also a space, q, between the bottom of the radiatorand that of the case B, and there is another space, r, between the topot' the radiator and the top of the case B, all being as shown. The saidradiator consists not only of a curved box, s, and a series of pipes, mm m, arranged vertically therein, and extended from head to head of theradiator, and opening through such, but of a series of transversevertical partitions, a a n, arranged between the said pipes in manner asshown, the partitions beingextended'alternately down from the upper headand up from the lower head of the radiator in manner as represented.Each partit-ion terminates at a distance from the head which is oppositeto that one from which such partition is projected. In consequence ofthis arrangement of the partitions with the box s' and the pipes m, thesmoke and hot gases, while coursing through the radiator, will be causedto pass alternately up and down therein, so as to go down around andagainst one pipe and up against and around the next, whereby not onlywill all 'the pipes be thoroughly heated, but the sides and top andbottom of the radiator will be heated. The air received into the case Bthrough one or more openings will be free to circulate through the pipesor the radiator, as well as against its outer surfaces, and afterderiving heat therefrom may be removed by one or more pipes leading fromthe case B to the room or apartments to be warmed.

I claiml. The radiator constructed as described, viz., of the curved boxs, pipes m, and partitions a, arranged in manner as specified.

2. I also claim the curved radiator C, the stove A, and theirconnection, and dischargepipes fg h, and damper fi, arranged in mannerand with the case B substantially as shown and explained.

JOHN S. SUMNER.

Witnesses It. H. EDDY, J. R. SNOW.

